1a,7b-Dihydroazirino(5,6)benzo(1,2-c:3,4-c')dithiophene 4,5-oxide 1a,7b-Dihydrooxireno(5,6)benzo(1,2-c:3,4-c')dithiophene 23102-68-3 Benzo(1,2-c:3,4-c')dithiophene-7,8-dihydro-7,8-epoxy CCRIS 1988 Oxireno(5,6)benzo(1,2-c:3,4-c')dithiophene, 1a,7b-dihydro-